/*
 * Copyright (c) MuleSoft, Inc.  All rights reserved.  http://www.mulesoft.com
 * The software in this package is published under the terms of the CPAL v1.0
 * license, a copy of which has been included with this distribution in the
 * LICENSE.txt file.
 */
package org.mule.runtime.core;

/**
 * A {@link NonBlockingVoidMuleEvent} represents a void return, but in contrast to {@link org.mule.runtime.core.VoidMuleEvent}
 * while the return up the stack is void, an asynchronous response is expected. Because Mule supports both blocking and
 * non-blocking then it is the return of this event instance that signals that a callback is to be expected.
 *
 * @since 3.7
 */
public class NonBlockingVoidMuleEvent extends VoidMuleEvent {

  private static final NonBlockingVoidMuleEvent instance = new NonBlockingVoidMuleEvent();

  public static NonBlockingVoidMuleEvent getInstance() {
    return instance;
  }

  private NonBlockingVoidMuleEvent() {
    super();
  }

}
